Micrometer gauge for roller mills



Oct. 9, 1928. 1,687,192

J. 'r. BARBER MICROMIETIER GAUGE FOR :ROLLER MILLS Filed Aug. 31, 1927Patented Oct. 9, 1928.

PATENT-OFFICE.

JAMES r. BARBER-{0F BROOKLYN, NEW YORK.

MICROMETER GAUGE ron nonrnn MILLS.

Application filed August 31,1927. Serial 110. 216,735.

In roller mills for grinding chocolate, ink and other substance lack of'definite lrnowl: edge of the previous or present position of the rollscenters in a horizontal line has necessitated numerous trial runs andsubsequent matching of the product to obtain the desired result. Thisresulted'in loss of time and material and was a source of vexation, andnot infrequently the cause of an unsatisfactory product. a

The present invention provides aI-m crometer gauge as a part ofthe millwhich may be instantly thrown out ofthe way or adjusted to operativeposition to admit of the distance between the centers of cooperating.

rolls being readily ascertained, thereby avoiding trial runs andassuring uniformity of product without necessitating the loss of timeand veXation incident to such trial runs and the matching of theproduct. 1 While the drawing illustrates a preferred embodiment of theinvention it is to be understood that in adapting the means to meetspecific needs and requirements, the. design may be variedand suchotherchangesin the minor details of construction may be resorted to withinthe scope of the invention as claimed, without departing from the spiritthereof. j

For a full understanding of the invention and the merits thereof,reference is to be had to the following description and'the drawinghereto attached, in which,

Figure 1 is a side View of a roller mill gauge embodying the invention,showing the same applied.

Figure 2 is an end View. Corresponding and like parts are referred to inthe following description and designated in both views of the drawing.

The roller mill illustrated embodies three rolls designated by theletters A, B and O, the same being disposed with their centers in thesame horizontal plane. These rolls are relatively adjustable to vary thedistances between adjacent elements of cooperating rolls. The gaugewhich constitutes the vital feature of the present invention, ispermanently attached to a convenient part of the mill, and asillustrated, is connected to the bearing of the middle roll B, so thatthe same supporting frame may be utilized for the gauge provided forcoacting rolls. A gauge is provided operating rolls. The rolls A and Bcooperate, and the rolls B and C cooperate. It will thus for each pairof coa be understood'thatthere are two pairs of cooperatingrolls, and inconsequence, there are provided two sets'of gauges which aremountedupon-a single frame. 'Each of the gauges comprises members 1' and2 which cross intermediate their ends and are pivoted atthe point ofcrossing, Latches 3 pivoted to a side of each of the members 1 and 2hold the gauge out of the way, as indicated most clearly at the right inFigure 1. Each of the members land 2 is offset intermediate its ends andis mounted upon a pin l which constitutes a pivot. A frame'ieceive'sthe, pin 4:

and consistsof a bar 5 and upstanding arms 6 at the ends of the bar.Binding screws 7 threaded into the frame serve to holdthe pins 4. inproper position. The frame is secured to a convenient part of the frameof the mill and, as indicated, is attached to the bearing of the centerroll "B and projects in opposite directions alike distance to properlyposition the gauge devices between the cooperating pairs of rolls. Astoppin 5 projects laterally from the upper end of each of the arms 6 andcooperates with the latches 3 to hold the gauge members out of the way,as indicated most clearly to the right in Figure 1 of the drawings. I r

The lower endsof the gauge members are enlarged, as indicated at 8, andtits 9 project outwardly from theenlai'ged ends 8 and are adaptedtoengage the hubs of the rolls when the gauge is set'to determine thedistance between the centers of coacting rolls.

The upper end of the gauge members 1 and 2 are also enlarged andapertured, the one to eter gauge 11 which may be of any approvedconstruction most advantageous for the purpose.

When the gauge is set to determine the dis- 1 receive an anvil 10, andthe other a micromlower ends of said members are correspondingly spread,whereby to bring the tits or projections 9 in contact with the hubs ofthe rolls, the distance being indicated by the reading of'the micrometergauge 11. In the initial set of coacting rolls the reading of themicrometer gauge 11 is recorded for future use when resetting the rollsto obtain a given result, thereby obviating the necessity of trial runs,and the loss of time and vexation incident thereto. a

It is observed that each pair of cooperating rolls has a gauge at eachend for accuracy of adjustmen -Having thus described the invention, Iclaim:

1. In a roller mill, the combination with coacting grinding rolls, of agauge, means for mounting said gauge upon the mill adjacent saidcoacting rolls, said gauge comprising gauge members pivoted intermediatetheir ends, corresponding ends of the gauge members being disposed tocome between coacting rolls and an indicating gauge in cooperativerelation with the opposite ends of the said gauge members to designatethe distance between the centers of the coac-ting rolls. 7

2. In a roller mill, the combination with coacting grinding rolls, of agauge, means for mounting said gauge upon the mill adjacent saidcoacting rolls, said gauge comprising gauge members pivoted intermediatetheir ends, corresponding ends of the gauge members being disposed tocome between coactingvrolls, and an indicating gauge in cooperativerelation with the opposite ends of the said gauge members to designatethe distance between the centers of the coacting rolls, and means forholding the gauge members out of the Way when not required to indicatethe distance between the centers of the rolls.

3. In a roller mill, coacting gauge members pivoted intermediate theirends and having corresponding ends disposed to come between eoactingrolls to determine the distance between the centers thereof, amicrometer gauge carried by the opposite end of one of the gauge membersand adapted to coact with the corresponding ends of the campanion gaugemember.,

4. In a roller mill, the combination with coacting grinding rolls, of agauge, means for mounting said gauge upon the mill adjacent said coactinrolls, said gauge compris-.

ing gauge mem ers pivoted intermediate their ends, corresponding ends ofthe gauge members being disposed to come between coacting rolls and anindicating gauge in gauge members pivoted intermediate their ends to theframe, a micrometer gauge mount ed upon an end of one of the gaugemembers and adapted to coact with the corresponding end of the companiongauge member and latches pivoted to the gauge members and adapted tocoact with the said stop to hold the gauge out of action.

6. The combination with a roller mill having three coacting rolls, aframe connected to the mill to form a partthereof, and havingarms atopposite ends, stops projecting laterally from the arms, gauge memberspivoted intermediate their ends to each end of the frame and havingopposite ends enlarged,- corresponding ends having tits or projectionsto come between coacting rolls, an anvil at the opposite end of one ofthe gauge members, a micrometer gauge at the corresponding end of theother gauge member and latches pivoted to the gauge members and adaptedto coact with the stops at the ends of the offstanding arms to hold thegauge members out of the way when the gauge is inactive.

c. In testimony whereof I affix my signature;

JAMES T. BARBER. [11. s.]

